AP9101CAK-BWTRG1

Overview

The AP9101CAK-BWTRG1 is a single-chip protection IC developed for lithium-ion and lithium-polymer rechargeable battery packs. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, overcharge current, and overdischarge conditions, automatically turning off external MOSFET switches upon detecting abnormalities. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.5 V to 4.425 V. It features low current consumption of 3.0 µA in operation mode and 0.01 µA in power-down mode. Packaged in SOT-25-5 surface-mount format, it functions reliably between -40°C and +85°C.

Feature Summary

• Integrates high-precision voltage detection for comprehensive battery protection against abnormal conditions
• Includes built-in fixed time circuitry eliminating the need for external capacitors
• Supports low-power operation with minimal current draw in both active and power-down modes

Applications

• Single-cell lithium-ion battery pack protection
• Lithium-polymer rechargeable battery management systems
• Portable electronic devices requiring compact battery safety solutions

Procurement Notes

Verify the specific suffix BWTRG1 against official Diodes Incorporated documentation to confirm exact detection voltage steps and hysteresis values. Ensure compatibility with external MOSFET switching requirements. Confirm RoHS compliance status and package integrity upon receipt. Cross-reference datasheet revisions to ensure alignment with design specifications.

Selection Notes

Select this component for applications requiring integrated protection without external timing capacitors. Verify that the required overcharge and overdischarge detection thresholds align with the available step configurations. Ensure the operating temperature range meets environmental demands. Confirm package availability matches board layout constraints.

Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series provides single-chip solutions for 1-cell Li+ battery packs. Variants differ by package type (SOT-25 or SOT-26) and specific detection voltage parameters defined by alphanumeric suffixes.

FAQ

Does the AP9101CAK-BWTRG1 require external capacitors for its timing circuits?

No, the device includes a built-in fixed time circuit, which eliminates the need for external capacitors.

What types of battery chemistries does this IC support?

It is designed for lithium-ion and lithium-polymer rechargeable batteries.